Reconfigurable ferromagnetic liquid droplets-Reference-Cited by-同舟云学术

Reconfigurable ferromagnetic liquid droplets

Published:2019-07-19 Issue:6450 Volume:365 Page:264-267
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Liu Xubo¹²^ORCID,Kent Noah²³^ORCID,Ceballos Alejandro⁴^ORCID,Streubel Robert²^ORCID,Jiang Yufeng²⁵^ORCID,Chai Yu²⁴⁶^ORCID,Kim Paul Y.²^ORCID,Forth Joe²^ORCID,Hellman Frances²⁷^ORCID,Shi Shaowei¹^ORCID,Wang Dong¹⁸^ORCID,Helms Brett A.²⁶^ORCID,Ashby Paul D.²⁶^ORCID,Fischer Peter²³^ORCID,Russell Thomas P.¹²⁹¹⁰^ORCID

Affiliation:

1. Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.

2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

3. Physics Department, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.

4. Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, CA 94720, USA.

5. Department of Applied Science and Technology, University of California, Berkeley, Berkeley, CA 94720, USA.

6. The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

7. Physics Department, University of California, Berkeley, Berkeley, CA 94720, USA.

8. State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China.

9. Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA 01003, USA.

10. WPI–Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai 980-8577, Japan.

Abstract

Liquid reconfigurable ferromagnetic materials Ferromagnetic materials show a permanent magnetic dipole, whereas superparamagnetic ones only show magnetic properties under an applied field. Some materials, like ferrofluids, show liquid-like behavior but do not retain their magnetization in the absence of an applied field. Liu et al. show remnant magnetization of otherwise superparamagnetic magnetite nanoparticles at an oil-water interface of emulsion droplets (see the Perspective by Dreyfus). The permanent magnetization could be controlled by coupling and uncoupling the magnetization of individual nanoparticles, making it possible to “write and erase” shapes of the droplets or to elongate them into cylinders. Science , this issue p. 264 ; see also p. 219

Funder

U.S. Department of Energy

China Scholarship Council

Beijing University of Chemical Technology

Beijing NSF

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference20 articles.

1. Ferrofluids and their applications

2. R. E. Rosensweig “Magnetic fluids” in Ferrohydrodynamics (Courier Corporation 2013) pp. 34–44.